Promoting Persistent Superionic Conductivity in Sodium Monocarba-closo-dodecaborate NaCB11H12 via Confinement within Nanoporous Silica
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We present the design, fabrication and test of high-Q factor radiofrequency planar microcoils for nuclear magnetic resonance (NMR) spectroscopy in small volume samples. The coils are fabricated on glass wafers using high-aspect ratio SU-8 photoepoxy and co ...
The aminophosphine C6H4(o-CN)NHPPh2, 1, containing an electron-withdrawing nitrile group, was prepared from the lithiation of 2-aminobenzonitrile followed by addition of Ph2PCl. Lithiation of 1 using (BuLi)-Bu-n affords the anion [Ph2PN(Li)C6H4(o-CN)(thf)] ...
In this thesis, the synthesis of oligomers of β-amino acids (β-peptides) is described. Their secondary structure is investigated by several techniques, in particular nuclear magnetic resonance (NMR) spectroscopy, but also circular dichroism and infrared sp ...
We performed in-situ Raman spectroscopy and X-ray diffraction experiments at high temperature and ambient pressure to investigate the intrinsic anharmonic properties of beta-Mg2SiO4 and the mechanism and kinetics of its back-transformation to forsterite. H ...
This paper presents the results of the investigation of the hydration of alkali-activated slag (AAS) by nuclear magnetic resonance spectroscopy (NMR). The cross-polarization (CP) technique was used in combination with magic-angle spinning (MAS). This resea ...
The reaction of pyrrole-2,5-dicarbaldehyde (1) with o-phenylenediamine (2) in anhyd. EtOH afforded a [1+1]-condensation product, viz., Schiff's base. The structure of the latter was established by NMR spectroscopy and x-ray diffraction anal. The reaction o ...
We determined the structure of the hydrated Cu(II) complex by both neutron diffraction and first-principles molecular dynamics, In contrast with the generally accepted picture, which assumes an octahedrally solvated Cu(II) ion, our experimental and theoret ...
American Association for the Advancement of Science2001
The reaction of the cluster complexes [Pt-3(mu -CO)(3)(PR3)(3)] (PR3 = PPh3 1, PPh(2)Bz 2, PCy3 3 and P(i)pr(3) 4) with dialkyl acetylenedicarboxylate, R'O2CC drop CCO2R' (R= CH3 or Bu-t) have been examined under various conditions. At low temperature the ...
Improvements in B(o) mapping and shimming were achieved by measuring the static field information in multiple subsequent echoes generated by an asymmetric echo-planar readout gradient train. With careful compensation, eddy current effects were shown to aff ...
High-temperature calorimetry experiments show that the isobaric heat capacity (C(p)) of minerals increases in an anomalously rapid way when the melting point is approached. These premelting effects can begin a few hundred degrees below the melting point, a ...